Patents by Inventor Stefan Hager

Stefan Hager has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240153844
    Abstract: A power semiconductor module has a base plate with a housing and a switching device. The switching device has a substrate and a connecting device with a first and a second main face. A group of power semiconductor components is arranged on a conductor track of the substrate, and has a group midpoint. A pressure device is formed on the substrate in the normal direction to exert pressure, which pressure device has a pressure body and a pressure inducing body, wherein a pressure element is arranged protruding from the pressure body, wherein the pressure element presses onto a pressure section of the second main face of the connecting device, and wherein the pressure inducing body has a pressure transmission section with a pressure transmission point.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 9, 2024
    Applicant: SEMIKRON DANFOSS ELEKTRONIK GMBH & CO. KG
    Inventors: Stefan OEHLING, Matthias HAGER, Verena GULITSCH, Harald KOBOLLA
  • Patent number: 11923785
    Abstract: Method for measuring an operating temperature of a power module (10) that is used for operating an electric vehicle drive, the power module (10) comprising a plurality of semiconductor switching elements (14) and drive electronics (16), wherein the semiconductor switching elements (14) can be switched by the drive electronics (16) in such a way that the semiconductor switching elements (14) allow or interrupt a drain-source current in order to convert the direct current fed into the power module (10) at the input side into an output-side alternating current, wherein the method comprises measurement of a voltage present at a point located on a side of a diode (22) that is connected in series with the semiconductor switching element (14) and that faces away from the semiconductor switching element (14), wherein the method comprises measurement of a drain-source current of the semiconductor switching element (14) that is generated by a current source (18), wherein the method comprises determination of a mathemat
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: March 5, 2024
    Assignee: ZF Friedrichshafen AG
    Inventors: Michael Meiler, Johannes Hager, Stefan Hain
  • Publication number: 20080281989
    Abstract: The patent discloses a medical instrument having a control device for controlling medical treatment software, wherein the control device includes a transmitter for transmitting software control signals and at least one control for activating the transmitter. The transmitter may be provided as a separate transmitter unit, and the instrument may include a closable interior receptacle, wherein the transmitter unit can be inserted into and removed from the interior receptacle.
    Type: Application
    Filed: May 1, 2008
    Publication date: November 13, 2008
    Inventors: Stefan Hager, Alexander Urban